yea both options are seeming to have their ups and downs.. the head replacement is by far the cheapest but im worried once head is taken off will see damage to pistons.
im pretty sure also they use the same cams (de & det). from what i found the r33 rb25 is the only rb thats head doesnt change from turbo to non-turbo. but im still not 100% sure weather the det head is a viable replacement for my de head? im sure it will work. because i havent found anyone who has said no yet.